Buffer Overflow vulnerability in FFmpeg 4.2 in mov_write_video_tag due to the out of bounds in libavformat/movenc.c, which could let a remote malicious user obtain sensitive information, cause a Denial of Service, or execute arbitrary code.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://trac.ffmpeg.org/ticket/8190 | exploit vendor advisory |
| https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html | third party advisory mailing list |
| https://www.debian.org/security/2021/dsa-4990 | third party advisory vendor advisory |